doubler

Meaning

Noun

• One who doubles.
• An instrument for augmenting a very small quantity of electricity, so as to render it manifest by sparks or the electroscope.
• A metal plate riveted or welded over a preexisting metal structural component to reinforce it and relieve the stress on the preexisting component, or to serve as a patch where part of the original structure has failed or been removed.
• A tenement house having two families on each floor.
• A biplane aeroplane or kite.
• Part of a distilling apparatus for intercepting the heavier fractions and returning them to be redistilled.
• A blanket or felt placed between the fabric and the printing table or cylinder.
• A person employed in a roller mill to fold the hot metal plates in half.
• A device with two electrical plugs that plugs into an electrical outlet, effectively converting the electrical outlet into two; socket converter.

Origin

• double + -er